Conference Presentation (After Call)

FZJ-2025-00041

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png DNS-WAPA: A cold-neutron xtal-TOF spectrometer with wide-angle polarization analysis

Su, Y.FZJ*

2023

Abstract: Unravelling emergent excitations and exotic quasiparticles in frustrated and topological quantum magnets represents a tremendous challenge experimentally, since the relevant inelastic scattering signals are very weak, often very broad in Q-space, and may be highly anisotropic in spin-space or strongly bond-direction dependent. A dedicated cold-neutron TOF spectrometer that combines with a new-generation wide-angle polarisation analysis (WAPA) can meet this challenge. The primary consideration of the DNS-WAPA project is to upgrade DNS to a more dedicated cold-neutron xtal-TOF spectrometer that would become internationally competitive among similar instruments for the measurement of magnetic excitations, meanwhile, to retain its world-leading position in polarised magnetic diffuse scattering.

Keyword(s): Magnetic Materials (1st) ; Information and Communication (1st) ; Magnetism (2nd) ; Condensed Matter Physics (2nd)

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Contributing Institute(s):

1. JCNS-FRM-II (JCNS-FRM-II)
2. Heinz Maier-Leibnitz Zentrum (MLZ)

Research Program(s):

1. 632 - Materials – Quantum, Complex and Functional Materials (POF4-632) (POF4-632)
2. 6G4 - Jülich Centre for Neutron Research (JCNS) (FZJ) (POF4-6G4) (POF4-6G4)

Experiment(s):

1. DNS: Diffuse scattering neutron time of flight spectrometer (NL6S)

Appears in the scientific report 2024

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